The bare-chested models of Abercrombie & Fitch have once again taken first place, with 147,000 shares this week, while two ads from Google - including one for its new Nexus 7 tablet - have crept into the bottom half of the chart.

The ad, created in-house at Abercrombie & Fitch, features a troop of its male models lip-syncing to Carlie Ray-Jepsen's 'Call Me Maybe' on a tour of the world, and has racked up almost seven million views and more than 10,000 comments.